Sewing-machine feeding mechanism.



I A. H. DE voE SEWING MACHINE FEEDING MECHANlSM. APPLICATION FILED MAR. 30. I914.

1,244,479. Patented Oct. 30,1917.

3 SHEETS-SHEET l,

79 INVENTOR l B Y A. H. DE VOE.

SEWING MACHINE FEEDING MECHANISM. APPLICATION FILED MAR. 30, 19M.

1,244,479. Patented Oct. 30,1917,

3 SHEETS-$HEET 2.

My} L 7 Arm/my WITNESSES:

E Q F N W 4% M, v K

man E! V enDs rAtrEs PATENT OFFICE.

41. 3am n, ma VOE, or Wns'rmnLn, NEW Jena;

ASSIGNORTO THE smear. MANU- FACTURING COMPANY, A CQZEFQEA ION; OF NEW JERSEY.

To cllwhomt't mag "concern." I v I Be itknown thatLALnnnrH. De Von, a "citizen of the United Statea, residing at Westfield, inthe county of Union and State l ef New Jersey, have invented certain new and useful Improvements in Sewing-Mm. chine Feeding Mechanisms, of which the, 1 following is a specification; reference being had thercinto the accompan, 'ng drawin s. This invention hasfor its primary object to provide a sewing machine with an upper feeding mechanism capable of operation at high speed. provide alternating prcsser-feet, of which one may have feeding movements imparted to it, mlaptcifl to be pressed upon the work i in such manner that the intensity ofcnga g.

meat of each witlrthe workwill proper tionate to. the requirements in performing their respective,- functions. It has for further objects to provide an advantageous operative"connection between the upper feeding mechanieinand the lower feeding mechanism to insure the proper advance of the work in its presentation to the stitch- :flirm'ing mmihanislnand also to provide in conjui'lction with the upper feeding mocha.- nisma simple and compact ruiiling or au o :iliary. feeding device. In the preferred form of the improvement the Work-engaging feet a: carried' by bars pivotailly sustained respectively by a Swing ing arm moantml upon a fixed fulcrum and the lat rally extending armof a plural 85 owned rocker 'i'alrrumcd up'on 'said swinging arm and hamg a Second arm operativcly connectedwith an actuating ecoentricmpon the. main-- oi" driving'ehaft. The hracketarm rovided with a lTlGlTllJBP'fOIHlOt'l with a samkot inwhich is fitted a plunger-pin prcasrd downwardly by means of a spring within Raid socket and with its lower cnd resting upon thc'pi swinging. arln adjacent s fulcrum. and in tormodiatethe latter anil'thh connections M5 tho pres .r-hars therewith. whereby the comprca ion of the spring with the rising and falling moven'ients oi" the prcsser-fcet is coinpa'ratively slight and the spriug-prea groos prina n'tionatc with their individual requirements.

The small range of UOIHPIPSSIOH and disspecimen of Letters Patent.

to glve the it has for a further object to lodying theprcsentimprovements. and Fig. 2' IS a prspcrtivc \lhW showing the needle ,r-ha r sustaining surrtransmitted to the 'n'esscr-fcrt in do snwmomaenmn marine mncmxmsm.

Patented Oct. 30, 1917.

Application filed March 30, 1914. Serial No; 828,185.

tention of the spring permits of a substantially uniform action upon the pressure-bar sustaining arm and as this may be adjusted ved degree of pressure on the oer-bars, :ite entire action throughout a do of operation of the presserdifting means is uniform and without the sluggishness and consequent inadaptahility to high speeds. connnon to mechanisms in which the degree of compression of'the spring com spends in extent with the automatic lift of the prcsser-feet i The upper and lower feeding mechanisms vcomprise adjnstahly connected rock-shafts dis 'iosod respectively aho'i 'e and helow the hedaamam former having fixed thereon a yo ed arm emln'acing an actuating eccen tric upon the main-slnift. The upper rockshaft has a, depending arm having a pivotal and slii'ling connection with the feeding foot to which it imparts the requisite lateral feeding movements einjuiltaneously with those of the feed-dog forming a part of the lower feeding mechanism.

The eccentric for imparting to the prerecorfeet' their lifting movemcn has also an operative cminection with a refit-shafthaving an adjustableconnection with a swinging har carrying a rufli'ing or auxiliary feeding 'men'iher by which the work may be fulle'd. in its presentation to the main feeding elements. i

The invention willhe understood by reference to the accompanying drawings, in which Figure 1' is a front side elevation, partly in section, of a sewing machine ema rtuating mcrlmnism and a part of the feeding inerhai '1 with the throat-Plate. Fig. 3 rear side elevation of the'machine with the lied-plate in section. Fig. 1s a porapcctivc viewi of the upper feeding nuwhanism. and Fig. 1" a perspective "View of the Ihilrrun'npiu sustaining the presserfoot litter and ruilling lever. Fig. 5-is a front end elevation of thesewing machine with the face plate removed. and certain parts in section; and Fig. (i a sectional eleva' tion taken through the bracket-arm standard. Fig. 7 is a sectional plan of the upper feeding and rufiling mechanisms. Fig. 8 is a perspective view of portions of the stripping footliftin g and mechanisms, and Fig. 9 a similar view of e {aiming 1ever .with the rufiling blade attafiihed. Fig. 10

is an extended perspective view of the connection between the rufliing lever and its actuating rock-shaft :arm. Journaled in the hollow' bracket-arm 1 rising from the.bed-',plate 2 is the mainor driving-shaft 3 provided with a Well known form of crankand-pitman connection with the needle-bar 4 carrying the needle 5 cooperating in the production of stitches with the rotary. hook 6 mounted upon the shaft journaled beneath the bed-plate.

Secured upon the shaft 3 by means of the set-screw 8 isthe collar 9 formed at one end with the flange 10 having an undercut trans- ;verse channel in its rearward face. 'Loosely mounted upon the fixed collar 9 is the loose collar 11 normally pressed against the flange 10 by means of the arched spring pressuredisk 12 secured to the collar9 by screws 13 by peripheral stud 18 adapted to enter an apperture 19 in the upper end of the detentlever 19 housed within a suitable recess of the bracket-arm standard in which it is pivotally mounted by means of the screw-pin 20, a spring, 21 maintaining the lever 19 pressed normally beyond the path of movement of the stud 18. Pressure by the operator upon the button 22 at the upper end of the lever 19 throws the latter inward for engagement with the stud 18 whereby the manual turning of the shaft 3 mono or the other direction will shift the collar 11 relatively to said shaft and through the action of its cam-slot 17 upon the slide-plate extension 14 shift the eccentric 15 toward or from the axis of the shaft for adjustment of its eccentricity. y

In the present instance, the machine is shown provided with a well-known form of vibratory take-up arm 23 extending forwardl y beyond the front wall of the bracketnrm head in the forward face of which is provided a scale hearing humher designations from 1 to 6 in conjunction with which the position of the upper edge of the takeup arm in a given position of the collar 11 upon the shaft 3 serves to indicate the degree aware of a rock-lever having a hub 26 and a second arm 27 formed in its outer portion with the slot 28. The said rock-lever is secured by means of the set-screw 29 upon the rearward end of-the upper feed rock-shaft 30 journaled in bearin bosses 31 and 32 upon the rear of the brac et-arm. The rock-shaft 30 has secure'dupon its forward end by the setscrew 33 the hub 34 of a swinging arm 35 having. upon its forked and forwardly extending lower end alined transverse hearing bosses 36 to receive the pivotal pin 37 upon 24 which is embraced by the yoked arm 25 which is fulerumed the tilting block 38 formed in its torwardedge with a recess 39 and provided with the alined bearingbeases 40 an in advance of the pi pin ingly fitted within the bearing bosses 40 it the guide-pin 41 secured by means of the set screw 42 within the apertured forward ex= tension 43 of the feedin pressenfoot shank 44 which is provided w th the foot- ]late 45 having the usual serrated bottom an formed in its outer face with a channel in which is secured the lower end of the swin ng feed bar 46 carrying at its upper end t e lateral stud-pin 47; V V

The stud-pin 47 of the feed-bar entcrs and is fitted within the apertured boss 48/ at the outer end of the member 49 of the swinging arm or frame 50 having ag transverse apertured boss 51 fitted upon the headed fulcrum-stud 52 secured by set-screws 53 in the bearing boss 54 of the bracket-arm head. The arm or frame 50 provided about midway between the bosses 4S and 51 with the spaced and alined bosses 55 and 56 in which is fitted the pin 57.

Mounted upon the pin 57 is the hub 58 of a rocking member having a forwardly extending. arm 59 and an axially and upwardly extending arm 60 carrying the stud-screw 61 which is embraced by the boss 62 at the outer end of the lateral arm 3 of the strap 6% embracing the actuating eccentric 65. upon the main shaft 3. The strap 64 is provided with a second arm 66 which has a forked and transversely apertured outer end.

' An apertured boss at the outer end of the rocker-arm 59 is entered by atransverse disposed at substantiallygtiglht angles stud-pin 67 upon an arni extending from the 1 collar 68 secured to the upper cmlof the presser-har (39. To the lower end of the bar (if) is secured by the set-screw 70 the. shank 71 oi" the falu'ic-stripping presser-ioot 72 provided wilh the needle-hole 73. The bar 131) is guided in its vertical movements by the bearing block 7ltitted thereto and provided with the transverse pin 75 confined by-Ineans ol the collar 76 \\'ithin a suitable aperture in the rigid arm 77 depending from the bracket-arm l1(,:l(l.

Formed in the rearwaml side of the ln'aekct-ariu head is the socket member 78 having applied to its threaded upper end the bushing 79 to which is fitted the plungerpin 80 formed with an annular flange 81 normally disposer near the bottom of the socket and between 3 inch and the adjacent end of the hue-lun 9 is interposed the pressure spring ihe plunger-pin 80 is shown with :1 reduced portion extending through the bot tom of the socket member and provided with the loose axial pin 83 of which the tapered lower end rents in a recess 81 formed in the upper face of the swii'iging arm 50 about midway between the fulcruinqiin 52 and pivotal pin 57. I

The point of tn egement of the plungerpin tl'ii' ough thefpin 83 upon the arm 50 is so close to the fulcrum of the letter that its movement is very slight in the normal operation of the member if) 50. and the degree o[' comprese on of the spring 82 in the oppome cxtren'uposition of the plunger-pin is ar-coiiliu; =;ly slight r;- ihnt the action of the spring i suhseiunwuily uniform throughout racli cycle of operation iii" the machine. The lig lit range ofmovcinent oi' the plunger-pin thus insures ugaiust tlir necessity hi com probes-ion of the spring beyond its elastic limit i ln order that the minimum pressure may be suilicient to meet thc'rcquirements of t llClTlCClhlillSfi'l for the high speeds for which the ,lfrl'tificflt improvement particularly der signed. As the leverage with which the spring acts upon'tlie member 49 50 is small, it is'cvicle'nt that its strength must be proportionately large, and. its pressure upon the plunger-pin flange 81 me) be adjusted within a wide range by means of the bushing 79 ion manner well-knoun 'Fhe rock-lever arm 2'7 carries the adjust S5 of well-known l'orni liicih fumScr-z through it? slot. 28 and is run hraccd by the npertured upper end of the link 80 having its opposite end connected beneath the bed-plntc by the stud 87 with the lateral arm 88 of the lower feed rock- ;dmft 89. This rock-shaft has the usual upright arms 90 upon and between which is mounted the crossbar 91 of the feed ber 92 carrying the lower feed-dog 93 and formed with the fork 94 at its opposite end to emn acc the stud 95 of: the lateral arm-96 secured upon the forward end of the feed lif't rock-shaft 97 actuated in u manner welllcnown. Adjustment of the feed-eccentric 15 produces a cormnponding adjustment in the range of oscillation of both of the connected rock-Hlurfts 3) und 8!), whose movements may he relatively varied hi' adjustment of the stud-screw 8:: toward and from the mole shaft 30.

Tapped into the forward end of the uppcr feed rock-shaft 30 is the fulcrum-pin 08 'ormcd with a hexagonulflange 99 nt opposite sides of which are the hearing portions 100 and 101, the former having journaled thereon the hub portion Q fingel'jlevel 102 having the eccentric pwefl erfeet limit cum portion 108 adapted to? engegemen' with the rollecetud 101-mounted upon the stud-screw 106 which is topped in the outer end of the pivotal pin 57 sustained by the swinging arm 419 D0. The actuation of the finger-lever serves to lift the Mm 19 50 in opposition to the pressure spri'n 32, and with it both the feeding toot em Presser foot through the described connections.

The bearing portion 101 of the fulcrum- Bin 98 has journaled thereon the e ei'tured .oe's 106 of the swinging rufiler1-b1e e carrying lever 107, confined. in ugosition by the hood nidtiie screw 98 tepp into the outer end of pin 38, The lever '107is" "formed with the slog; 108;; tending lengthwise thereof and suhetumtiel' 9K in Register with a slot 109 of the delpefldiilg c eek-a m 110 f a rockchaft 11. jourrielod in 51- depending hcaring member 112 of the bracket-arm head. The rock-shaft 111 hes secur p its opposite end the hub of u lBtQ B- Crankarin 113 provided with the stud pln 114 cmliraced by the split lower end of a curved link 115 whose apcrtured opposite and eml-ir i' ce a pivotal 15in 116 journeiled in the epert-ured outer end of the sirm 66 of the eccentric strep 5-4:

The lever 107 in pivotelly connected with the slotted cra-nk el'm new means o the shouldered screw-pin 117, thewiishers 118 and 119":1-nd the nut 120, in It 1 5 11 11 lknown', the connecting pertebeinj adapted to he clamped together in difiern O S1t lpns upon the arm 110 relatively to t e rockshnft lll.

The lever 107 has at its lower end the inrented stirrup 121 embracing the milling liladc carrying arm 122 fulcrumed at one end upon the etgdpin 123 carried by the lever 197 end provided at its opposite end with n lateral inclined car 124 upon which is secured by means of the screws 125 the hank of the rufliing or au il y e g blade 126. The lever 107 has odjustiibly secured upon its forward edge y means 0 the screw 127 the slotted foot 1230f r plete 129 apet'tured to. reoeive and guide the upper end of the thrdst-piug130 whose tapered lower end rests in a Suit'ajble depression in the upper od e of the arm 122 and which. is normally depressedbymeans of the spring 131 inter osed between the thrust plate 12.) and acoler 182 of the pin 130. The spring 131 acts through the gin 130 to normally press the milling blade L6 upon the work. i

1 In the use of the machine, the presses!- feet having been lifted by means of the finger-lever 102, the work is introduced and the presscwfeet lowered. The machine bemg set in motion, the feeding and stitching proceodsn the usual manner, the work being fulled in advance of the presser-foot to the re uired extent by proper adjustment of the ru ing device.

In the operation of the worlcengaging feet and 72, the oscillatory movement of the lural-armed rocker 59-60 causes first the escent'of the resser-foot 72 upon the work and then the action of the stud-pin 67 as a fulcrum for the bodily rise of the rocker in its continued turning movement under the action of the eccentric and with it the pivotal pin 57 and hence of the swing mg the retrorade oscillatory movement of the rocker, t e presser-foot 45 is loweredmpon the work, resting upon the lower feed-dog, and the pivotal pin 57 affords a fulcrum upon which the rocker continues its turning movement in lifting the Presser-foot clear of the work.

'VVhile the presser-foot engages the work as above described, its connections with the actuating eccentric 65 form a relatively unyielding structure sustaining the thrust of the pressure-spring througlrthe pivotal pin 57 whose distance from the fulcrum-pin 52 relatively to the point of application of the thrust-pin extension 83 determines the proportion of the full strength of the pressilrespring to be a plied to the presscr-foot. When the presser 'Foot is lifted, the force of the pressure-spring becomes imposed upon the feeding foot through the studin 47 at a 'much greater distance from the fu crum-pin 52, and hence the effective leverage of thrust of the spring is greatly reduced, being in the present instance not more than one-half of that imposed upon the presscr-foot to' insure the proper stripping of the work from the ascending needle in the formation of the needle-thread loops.

As regards this part of the improvement it is immaterial whether either or both the prcsscr-foct receive other movements than their rising and falling movements, a characteristic feature being the means for iman-ting thereto the mutually alternatinglift- 1H,: movements and the relat lveproportions of ie of t in chief charactcristics-o f thc invenrangeof um t thcl 'iicgrcc or compression of the spring is materially less than that which would correspond with the lift of' the prcssor-fecl, as in other constructions heretofore devised. Another important feature is-tlio distriln-ition of the spring power in such manner that a greater cliectivr thrust is imiioscd 11 non the \\-'orl -stri ming presserfoot than upon iho feuding foot, so that each may receive a springqarossurc only of such intensity as is luwcssary or desirable in the the full power of thespring applied thereto.

11th, 8 ementtheir arm 49 50 with the presser-foot l5. In

sustain 2 movements of the arm 49 50 upon its fulcrum-pin 52.

By the means described for actuating the upper and lower feed rock-shafts the connections between the actuating eccentric and the upper and lower feeding mechanisms is made simple and direct and a convenient means is provided for the relative adjust ment of operative throw of the enacting feeding elements.

While the preferred embodiment of this improvement is shown anddescribed hercin, it is evident that the component parts may be materially modified both, in construction and arrangement without departure from the scope of the present invention.

Having thus set forth the nature of theinvention, what I claim herein is:--

1. In a sewing machine, the combination with a Work-feeding foot, a support therefor upon which the foot is confined against bodily movement thereon in. the direction of its length, and intermittently operating lift-- ing means for said'foot, of a spring for pressing. said foot upon the work, and a conncctiou between said spring and support and comprising a thrust-receiving member for said spring, said spring having a range of movement materially shorter than that of said foot.

2. In a sewing machine, the combination with :1. plurality of work-engaging feet and means for im 'iarting thereto mutually alter-- nating lifting movements, of a spring for pressing said foot upon the work, and connoctions between said spring and feet and comprising a common thrust-receiving memberafor said spring, said sprin having a range of movement shorter than that of either of said foot.

3. In a sewing machine, the combination with a feeding foot, a support therefor upon which the foot is confined against bodily movement thereon in the direction of its length, means for imparting lifting and lat oral fpeding movements to said support, of a pressure spring for said foot, and 'a. connection betweensaid spring and support comfor imparting to one of said. feet lateralfccding movements, of a pressure spring for sun! feet, and connections between said spring and each of said foot comprising a.

thrust-mstaining member for said spring, said springhaving a smaller range of lifting movement than that of either of said feet.

5. in a sewing machine, the combination with a plurality of work-migaging feet, and means for imparting thereto mutually alterhating, lifting moven'icnts, of a pressure sl'iring for said feet, and connections between said spring and each of said feet and coi'nprising means for transmitting from the spring to said feet respectively pressures of differently diminished intensity.

6. In a sewing machine, the combination with a plurality of work-engaging focused means for imparting thereto nui'tu'ally altern: ing' lifting movements, of a pressure spring for said feet, a thrust-sustaining ll'lfiIllllhl! for said spring, and independent conm-ctions betweeii said thrustsustaining member and said feet whereby pressures of different intensities are transi'nitted to the latter,

77 In a sewing machine, the combination with a plurality of worleengaging feet, and means for imparling thereto mutually alternating lifting movements, of a pressure spring for rid feet, a pivotally supported thrusbsustaining member for said spring, and operative connections between said thruitsustaining member at different distances from its pit otal support and each of said feet.

8. In a sewing machine, the combination with a plurality of work-engaging feet, and means for imparting thereto reciprocal lifting inoven'ients, of a thllist-sustaining member, a pivotal support therefor, a pressure spring engaging said member laterally of said support, and operative connections from each of said feet to said thrusl'rsusiaining member at the opposite-side of the point of application of said spring thereto from said PlVOtllISttllIPOl'l). r

9. In a sewing machine, the combination with a nlurality. of work-engaging feet and means or imparting thereto reciprocal liftingmovements, of-a pressure spring for said feet, a thrust-suslaining member, a pivotal support therefor, a pressure spring engagingsaid member laterally of said support, and operative connections from each ofsaid feet to said thrust-sustaining[member at different distances from its pivotal support and exceeding that of the point of application of the spring therefrom.

1.0. In a sewing machine, the combination with a plurality of work-engaging feet, of a swinging arm, a pivotal support therefor, a connection between said armand one of said feet, a rocking member fulcrumed upon said arm intermediate its connection with :saul foot and its pivotal support, a connection between the other of said feet-and said rocking member, means for, actuating said a swinging arm, a pivotal rocking member, and a spring applied to said arm for pressing and feet upon the work. i

ll. In a sewing machine, the combination with a plurality of Work-engaging feet, of a swinging arm, a pivotal support; therefor a connection between said arm and one 0 said feet, a rocking member fulcrumed upon said arm intermediate its connection with said foot and its pivotal support, a connection between the other of said feet and said reclch'ig n'rcmber, means for actuating said locking member, and a spring a plied to said arm intermediate its pivota' support and its connections with said feet.-

12. In a sewing machine, the combination with a. plurality of work-engaging feet, of a swinging arm, a pivotal support therefor, a connection between said arm and one of said feet, a fulcrum'pin sustained by said swinging arm intermediate its pivotal. support and the connection. with said feet, a plural-armed rocker mounted upon said fill. crumpin, a connection between one arm of said rocker and a second of said feet, a rotary actuating element, and a connection between said actuating element'and another arm of said rocker.

13. In a sewing machine, the combination with a lurality of work-engaging feet, of aswinging arm, a pivotal support therefor, a conm-etion between said arm and one of said feet, a fulcrum n sustained by sai swingim arm intermf iate its pivotal support and plural-armed rocker mounted upon said fulerum-pin, a connection between one arm of said rocker and-a second of said feet, a rotary actuating element, a connection between said. actuating element and another arm of said rocker, and lifting means applied to said fulcrum pin whereby both feet "may be lifted simultaneously.

M In a sewing machine, the combination with a plurality of work-engaging feet,- of sup-port therefor, independentconnections between said-arm and said feet, lifting means connected with said arm, a plungcrqnnresting uponlsaid arm, a socket member to which said plungerpin is fitted, and a spring housed within said socket member plunger pin.

15. In a sewing machine, the combination with the frame comprising a bed-plate and an overhanging bracket-arm, of a rotary sluiftjournaled in said bracket-arm, upper feeding mechanism and lower feedin mechanism disposedrespectively above an below lhe bed-plate, a rock-shaft journaled upon the bracket-arm :1 depending creole arm tliereon connects with an element of the 'npperfeeding. mechanism, a lateral rranloarm lixc'd upon said rock-shaft, a link directly connecting said lateral crankarm the connection with said feet, a

and bearing upon said v and an element, of the lower feeding mecha- Y nism, and a third crank-arm upon said.

rock-shaft peratively connected with th rotary shaft,

16- In a ewing machine, the combination,

with the frame comprising a bed-plate and an. overhangin bracket-arm, of a rotary shaft jo rnals in said bracket-arm, a. feed rock-shaft Sustained by said bracket-arm,

a swingin' feed-bar carrying afeeding foot sustained y said bracket-arm and provided with lifting means, an operative conneotlon between said rock-shaft and feed-bar, feed ing mechanism disposed beneath the workplate and includin a feed-dog coiiperating with said feeding oot, an operative connection between said rock-shaft and the lower feeding mechanism, and an 0 erative connection between said rotary s aft and the rockshaft inde endent of the latters connections with t e upper and lower feeding mechanisms.

v 17. In a sewing machine, the combina-- tion with the frame comprising abed-plate and an overhanging bracket-arm, of a retary shaft journaled in said bracket-arm, a feed-actuatlng element mounted thereon, a feedrock-shaft sustained by said bracketarm, a lateral arm fixed upon said rockshaft and recessed to embrace said actuating element from which it derives operative movements, a swinging feed-bar carrying a feeding foot sustained by said bracket-arm and provided with lifting means, an operative connection between said rock-shaft and feed-bar, feeding "mechanism disposed beneath the work-plate and including a feeddog coiiperating with said feeding-foot, and means including relatively adjustable parts disposed exterior to said braoket-arm for connecting said lower feeding mechanism with said rock-shaft.

18. In a sewing machine,- the combination with a swingin feed-bar provided with a guide element isposed lengthwise thereof and carrying a feeding foot, and means for imparting llftingmovementsthereto, of a feed rock-shaft, a swingingarm sustained thereby, and a block fulcrumed upon and transversely of said swinging arm and provided with a versely to its said feed-bar. 19. In a sewing machine, the combination with a rotaryshaft, upper feeding fmechanism including a swinging bar carrying a feeding foot, and means for imparting lateral movements thereto, and a r'uiiling device comprising a swinging lever carrying a ruflling blade, of an jeccentricactuating 6 member fixed upon said shaft, a sleeve embracing the same, and independent connecide element disposed translcrum and fitted to 'thatof tions between said sleeve and the feed-bar and rufiling blade carrying lever, respectively, whereby lifting ij ovements areiI' 65 parted to the former an lateral operative movements are imparted to the latter. 20. In a. feedin mechanism for sewing machines, a bed-p ate, a lower feed-(103313,

codperating upper feeding foot, amain driving shaft located above the bed-plate, asingle actuating element ,on said shaft for i parting lateral feeding movements to said dog and foot, and a, spring operatively fil i ranged to press said upper feeding foot downward, means for moving said-: foot verticall into and out of engage'mentiwith the wor said spring having a range of Ifnovement materially less than that of said not;-

21. In a feeding mechanisiii for sewingimachines, feeding members including a" lower feed-dog and a cooperating u'pperi feeding foot, a single eccentric imparting to each of said feeding member's 1atral feeding movements and to one of said feding members vertical movements, a Presserfoot for stripping the fabric from the needle, and a springpperatively arranged to unif0rmly press 581d upper feeding foot 9 and said presser-foot againstfthe work, said spring having a range of movement materially less than that of the feet",

In testimony whereof, I have signed my name to this specification in the presence ofj two subscribing witnesses.

ALBERT H. DE VOE.

Witnesses:

HENRY J. MILLER, HENRY A; KORNEMANIN, Jr, 

